I received complaints about problem on install the Windows Vista Service Pack 1. They getting this message:
Windows Vista Service Pack 1 is not available for installation from Windows Update and is not offered by Automatic Updates.
It could be due to some causes that causing Windows Update fail to install the SP1. Here is some of the causes:
- You are already running Windows Vista SP1.
- Windows Vista SP1 has not been released for the language of the language pack that you have installed.
- Windows Service Pack Blocker Tool is used to block the delivery of Windows Vista SP1 from Automatic Updates or from Windows Update.
- A hardware device driver or device software was problematic when you updated to Windows Vista SP1.
- You have installed a pre-release version of Windows Vista SP1.